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summer internships in California
Software Engineer Intern (Experimentation & Evaluation, Data Platform) - 2026 Summer (BS/MS)
TikTok - San Jose, CA
Summer Sales Internship Pico Rivera
Grit Marketing - Pico Rivera, CA
Intern, R&D Undergraduate Summer - MARTIANS, Onsite
Sandia National Laboratories - Livermore, CA
Summer Sales Internship Escondido
Grit Marketing - Escondido, CA
Summer Sales Internship Westminster
Grit Marketing - Westminster, CA
Research Analyst Intern (Economics & Finance) - Summer 2026
Lensa - San Francisco, CA
Summer Tax/Audit Internship
Talley LLP - Orange, CA
Software Engineer Intern (Inference Infrastructure) - 2026 Summer (MS/BS)
ByteDance - San Jose, CA
Summer Sales Internship
Grit Marketing - Orange, CA
Palo Alto Commercial Real Estate Investment Sales Intern - Summer 2026
Marcus & Millichap - Palo Alto, CA
Software Engineer Intern (Summer 2026)
Whatnot - San Francisco, CA
Summer 2026 AI Science Intern
Intuit - Mountain View, CA
Preconstruction Internship - Summer 2026
Royal Electric Company - Sacramento, CA
Summer 2026 Cyber Security Intern
Intuit - San Diego, CA
Intern, R&D Undergraduate Summer - Computer Science Research Institute (CSRI), CA, Remote
Sandia National Laboratories - Livermore, CA
Summer Sales Internship Ceres
Grit Marketing - Ceres, CA
Software Engineer Intern (Agentic AI Engine - Data Management platform) - 2026 Summer (BS/MS)
TikTok - San Jose, CA
Summer Sales Internship Novato
Grit Marketing - Novato, CA
R&D Protein Chemistry - Grad Intern Summer 2026
BioSpace - Thousand Oaks, CA
Software Engineer Intern (Recommendation Infrastructure) - 2026 Summer (Bachelor/Master)
TikTok - San Jose, CA
